123642546160 has 80 divisors (see below), whose sum is σ = 328585701312. Its totient is φ = 42385305600.

The previous prime is 123642546119. The next prime is 123642546211. The reversal of 123642546160 is 61645246321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5050750 + ... + 5075170.

Almost surely, 2^123642546160 is an apocalyptic number.

123642546160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123642546160 is an abundant number, since it is smaller than the sum of its proper divisors (204943155152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123642546160 is a wasteful number, since it uses less digits than its factorization.

123642546160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33482 (or 33476 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 123642546160 in words is "one hundred twenty-three billion, six hundred forty-two million, five hundred forty-six thousand, one hundred sixty".